Why the Church opposes contraception and invitro

A word of introduction. What is contraception and what is invitro? Contraception is the name given to certain methods, which serve the purpose of preventing pregnancy. The most common forms of contraception are condoms, IUDs, hormonal contraception or taking medicines which control the female hormonal system and sterilization. In vitro is the so-called in vitro fertilization, or artificial insemination, which consists in implanting a sperm...